"use strict";
const path = require("path");
const defaultSettings = require("./src/config.js");

const webpack = require("webpack");

function resolve(dir) {
  return path.join(__dirname, dir);
}
const name = defaultSettings.title; // page title
const port = process.env.port || process.env.npm_config_port || 8899; // dev port
// All configuration item explanations can be find in https://cli.vuejs.org/config/

module.exports = {
  publicPath: process.env.VUE_APP_PUBLICPATH,
  outputDir: process.env.VUE_APP_OUTPUTDIR,
  assetsDir: "static",
  productionSourceMap: false,
  devServer: {
    port: port,
    open: false,
    overlay: {
      warnings: false,
      errors: true,
    },
    proxy: {
      "/api": {
        target: process.env.VUE_APP_BASE_API,
        // target: 'http://173.16.200.25:9501',
        changeOrigin: true,
        pathRewrite: {
          "^/api": "",
        },
      },
    },
  },
  configureWebpack: {
    name: name,
    resolve: {
      alias: {
        "@": resolve("src"),
      },
    },
    externals: {
      AMap: "window.AMap",
    },
    plugins: [
      new webpack.ProvidePlugin({
        $: "jquery",
        jQuery: "jquery",
        "window.jQuery": "jquery",
      }),
    ],
  },
  chainWebpack(config) {
    // html options
    config.plugin("html").tap((args) => {
      // args[0].title = defaultSettings.title;
      args[0].title = "膏珍堂";
      args[0].icon = defaultSettings.icon;
      return args;
    });
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin("preload").tap(() => [
      {
        rel: "preload",
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: "initial",
      },
    ]);
    config.module
      .rule("eslint")
      .use("eslint-loader")
      .loader("eslint-loader")
      .tap((options) => {
        // 修改它的选项...
        options.fix = true;
        return options;
      });
    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete("prefetch");

    // set svg-sprite-loader
    config.module.rule("svg").exclude.add(resolve("src/icons")).end();
    config.module
      .rule("icons")
      .test(/\.svg$/)
      .include.add(resolve("src/icons"))
      .end()
      .use("svg-sprite-loader")
      .loader("svg-sprite-loader")
      .options({
        symbolId: "icon-[name]",
      })
      .end();

    config.when(process.env.NODE_ENV !== "development", (config) => {
      config
        .plugin("ScriptExtHtmlWebpackPlugin")
        .after("html")
        .use("script-ext-html-webpack-plugin", [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/,
          },
        ])
        .end();
      config.optimization.splitChunks({
        chunks: "all",
        cacheGroups: {
          libs: {
            name: "chunk-libs",
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: "initial", // only package third parties that are initially dependent
          },
          elementUI: {
            name: "chunk-elementUI", // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/, // in order to adapt to cnpm
          },
          commons: {
            name: "chunk-commons",
            test: resolve("src/components"), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true,
          },
        },
      });
      // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
      config.optimization.runtimeChunk("single");
    });
  },
};
